Coke extractor for vertical carbonization retorts



E. WEST Dec. 13, 1932.

COKE EXTRACTOR FOR VERTICAL CARBONIZATION RETORTS Filed Aug. 18, 1930 3 Sheets-Sheet 1 Fig.1

E. WEST Dec. 13, 1932.

- COKE EXTRACTOR FOR VERTICAL CARBONIZATION RETORTS Filed Aug. 18, 1930 3 Sheets-Sheet 2 E. WEST Dec. 13, 1932.

COKE EXTRACTOR FOR VERTICAL CARBONIZATION RETORTS Filed Aug. 18, 1930 3 Sheets-Sheet 3 Hum Patented Dec. 13, 1932 UNITED STATES ram" ERNEST .WEST, OF MANCHESTER, ENGLAND, ASSIGNOR TO WESTS GAS IMPROVEMENT COMPANY, LIMITED, 0E MANCHESTER, ENGLAND, A BRITISH COMPANY COKE EXTRACTOE FOR VERTICAL CARBONIZATION RETORTS Application filed August 1S, 1930, Serial No. 476,117, and in Great Britain December 12, 1929.

This invention relates to constructions associated with vertical retorts for the distillation of coal and the like and coke extractors therefor, an object of the invention being to provide an improved mode of supporting the retort settings, and improved extractor means.

In retorts having swinging or pivotally mounted coke chambers as at present known, the retorts or settings are supported upon agirder floor, below which the extractor cham here are independently carried and are t1ltable for the purpose of shutting ofi the retorts from-the extractor chambers and for emptying the latter. Each retort and the coke extractor chamber beneath are separate and as the latter is displaceable, the joint between the retort and extractor chamber is liable to allow an escape of gas. Difiiculty is experienced in making and maintaining this joint tight in the various conditions of service, due to diiferences in expansion and contraction, sagging of the girder floor and other causes.

An object of the invention comprises the combination with a vertical carbonization retort, of a coke chamber fixed beneath said retort to form a continuous chamber therewith and having an opening at its lower end, a table movable in said coke chamber, a rear inclined wall of said coke chamber, a false back tiltable towards said inclined wall to facilitate coke discharge from said coke chamber, an enclosed shutter for cutting off said retort from said coke chamber, and a door for sealing said opening at the lower end of said coke chamber.

A further object of the invention comprises the combination with a vertical carbonization retort, of a coke chamber fixed beneath said retort to form a continuous chamber therewith and having an opening at its lower end, a table reciprocable in said coke chamber, a rear inclined wall of said coke chamber, a false back tiltable towards said inclined wall to facilitate coke discharge from said coke chamber, a shutter provided on said false back for cutting off saidcoke chamber from said retort when said false wall is tilted, and

a door for sealing said opening at the lower end of said coke chamber.

Further obyects and advantages of the invention will be apparent from the following I tary side and front detail views of the operating gear for opening and closing the discharge doors of the chambers.

In carrying the invention into effect according to one convenient mode, by way of example, the retorts X, Y and extractor chambers A, B form a continuous chamber, i. e. without displaceable joints between them, the chambers A, B being enclosed between slde plates or walls a suitably reinforced by flanges or channel sections, front vertical walls I) and rear walls a, the latter being inclined to the vertical and secured by angle irons or otherwise to the side plates a. The chambers arebuilt back to back so that in section the rear inclined walls 0 present an inverted V form and constitute a truss-like frame adapted in conjunction with the side walls to support the girder floor beneath the settings seen above in Figures 1 and 3 and indicated by the reference C. Supplementary side plates or walls (Z may be provided enclosing the walls .0 and the gear for operating the extractor tables, these walls preferably extending from the girder floor C to the foundation of the structure.

Between the front and rear walls of each chamber a hinged plate or false wall 0 is provided normally positioned parallel with the front wall 6 but capable of being tilted backward against the rear inclined wall 0, about a pivot or hinge e at its lower edge,

as shown in Figure 1. The pivots may be mounted in eccentrics or like means for adjusting the pivotal axis.

The upper edge of each false wall 6 has an apertured arcuate valve plate or shutter c thereon, which under normal conditions passes through a slot 6 in the front wall 7) and is housed in a pocketor casing b secured to b. The aperture in e is indicated at e and is adapted to coincide in shape with the exit passage 7 from the retort X above, when the wall 6 is in the vertical position (see chamber A, Figure 1). When the wall 6 is tilted back, the passage 7 is closed by the non-apertured or solid part of the shutter e as illustrated with reference to chamber B in Fig ure 1.

For actuating the false wall 6 with its shutter 6 arcuate racks e*, for example, one at each side of the shutter e are provided beneath the shutter 6 each rack being engaged by a pinion 9 upon a horizontal shaft located within the pocket or casing 5 The shafts carrying the pinion g of the various extractor chambers may be operated selectively by clutch or like means 9 (Figure 3) from a common shaft as will be referred to again hereinafter, or they may be selectively actuated by a trolley motor which is traversed from retort to retort along the front of the retort bench. According to another mode of operation, the pinions 9 may be rotated by racks reciprocated in any suitable manner.

In each extractor chamber, between the front wall I) and the false wall 6, a table 71. suspended from chains h is provided for lowering the coke column, the table being finally tiltable by slacking off the chains for discharging purposes (see position below chamber B, Figure 1). The tilting of the table for discharge purposes is automatic by reason of one side of the table having, holes 71, therein engaging hooks k which hold up that side of the table whilst the other side falls until it comes into contact with the side 1) of the door Z. Three hooks may engage each table.

The chain k are protected from the hot coke within the chambers A B by being located in channels a in the side plates a, whilst the guide pulleys therefor are arranged in the space between the walls a and the walls (Z. The actuating pulleys 2' for the chains may be operated through bevel gears by the cross shaft j (see Figure 3) which in turn may be rotated through bevel gears from a common operating shaft k to and from which it may be engaged and disengaged by a clutch (not shown).

The lower end of each extractor chamber is closed by an arcuate discharging door Z located so as to be capable of oscillation about a transverse pivotal axis below the coke column and adapted to seat itself upon the lower edges of the front and rear walls I) and 0 of the chamber and rest upon a similar seating at the bottom of the side plates, or upon the lower face of a supplementary section on conveniently introduced at the bottom of each extractor chamber. The door Z is mounted upon eccentrics n carried by a rotatable shaft 01 which may be conveniently actuated by a handle 11?, so that the pivotal axis and door may be raised or lowered for bringing seating pressure to bear between the door and the section m when closing the door and for releasing such pressure when opening the door for discharging purposes.

For swinging the door from the closed position (beneath chamber A, Figure 1) to the open position (as seen below chamber 13) and vice versa any appropriate mechanism may be employed; for example, a rack Z may be cured to the side of the door. This rack is engaged by a worm keyed upon a shaft 0 which receives rotation as required from the handle 0 through bevel gears. The worm can have a limited amount of free axial movement so that when the door Z is raised or lowered by turning the eccentrics n, the worm moves with the door and does not bind thereon.

For convenience of discharge, the door Z is provided with a facing plate p at one side which serves as a guide for discharging the contents of the chamber into a chute or hopper g which may deliver to a chain or other conveyor 1'.

In operation when it is desired to discharge the coke from within the coke or extractor chamber, the false back a of the said chamber is swung back by appropriate operation of its rack 0 so that the shutter valve 6 cuts off the retort from the coke column in the coke chamber. The said movement of the false back by enlarging thecoke space, tends to free the coke to be extracted so that when the discharge door Z is opened and the table It caused to hang from the hooks k discharge of the coke takes place readily along the plate 79 to the chute 9. After discharge, the table It is raised till it comes beneath the shutter 0 the door Z is closed and the false back 6 with the shutter e thereon is moved till the aperture e in e coincides with the bottom of the retort, when the charge in the latter falls on to and is supported by the plate h which is gradually lowered as carbonization proceeds.

The girder floor C of the retort settings may be supported by the substructure comprised by the front and rear walls of the extraction chambers and by the side walls thereof; preferably the front, rear and side walls are combined to constitute a box-like girder construction to afford a rigid support for the floor C. It will be seen that the only joint which it is necessary to make with my improved extraction apparatus is between the door Z and the bottom of the coke chamber. This can be readily and effectively made by using the eccentrics n for imposing pressure between the door and the substructure m.

If desired, the clutch mechanisms or equivalent means for actuating the false wall a and shutter e on the one hand and for raising and lowering the extraction table it on the other hand, may be interconnected in such a way that the table it cannot be lowered to its discharge position upon the hooks 7L until the shutter e is closed and conversely the shutter 0 cannot be opened while the table it is in the discharge position. Alternatively, a key or detachable lever or handle device may be provided for operating the levers actuating the respective clutches and a ward or guard clevice be employed in association with each lever so that the key handle cannot be withdrawn from the shutter lever and applied to the table clutch lever until the shutter has been appropriately set and vice versa.

The words front and rear as applied to walls of an extraction chamber are relative terms only used for convenience of description.

What I claim is 1. The combination with a vertical carbonization retort, of a coke chamber fixed beneath said retort to form a continuous chamber therewith and having an opening at its lower end, table movable in said coke chamber, a rear inclined wall of said coke chamber, a false back tiltable towards said inclined wall to facilitate coke discharge from said coke chamber, an enclosed shutter for cutting off said retort from said coke chamber. and a door for sealing said opening at the lower end of said coke chamber.

2. The combination with a vertical carbonization retort, of a coke chamber fixed beneath said retort to form a continuous chamber therewith and having an opening at its lower end, a table reciprocable in said coke chamber, a rear inclined wall of said coke chamber, a false back tiltable towards said inclined wall to facilitate coke discharge from said coke chamber, a shutter provided on said false back for cutting off said coke chamber from said retort when said false wall is tilted, and a door for sealing said opening at the lower end of said coke chamber.

3. The combination with a vertical carbonization retort, of a coke chamber fixed beneath said retort to form a continuous chamber therewith and having an opening at its lower end, a table movable in said coke chamber, means for raising and lowering said table in said coke chamber, a rear inclined wall of said coke chamber, a false back tiltable towards said inclined wall to facilitate coke discharge from said coke chamber, side walls of said coke chamber having channels therein for the accommodation of said means, supplementary side walls for enclosing said means, a shutter provided on said false back for cutting off said coke chamber from said retort when said false back is tilted, and a door for sealing said opening at the lower end of said coke chamher.

4. The combination with a vertical carboniza'tion retort, of a coke chamber fixed beneath said retort to form a continuous chamber therewith and having an opening at its lower end, a table movable in said coke chamber, a rear inclined wall of said coke chamber, a false back tiltable towards said inclined wall to facilitate coke discharge from said coke chamber, an enclosed shutter for cutting oil said retort from said coke chamber, an arcuate discharge door for sealing said opening at the lower end of said coke chamber and eccentrics "upon which said arcuate discharge door is displaceably mounted. v

5. The combination with a vertical carbonization retort, of a coke chamber fixed beneath said retort to form a continuous chamber therewith and having an opening at its lower end, a table movable in said coke chamber, a rear inclined wall of said coke chamber, a false back tiltable towards said inclined wall to facilitate coke discharge from said coke chamber, an enclosed shutter for cutting off said retort from said coke chamber, and an arcuate discharge door for sealing said opening at the lower end of said coke chamber. a

6. The combination with a vertical carbonization retort, of a coke chamber fixed beneath said retort to form a continuous chamber therewith and having an opening at its lower end, a table movable in said coke chamber, means for raising and lowering said table in said coke chamber, a rear inclined wall of said coke chamber, a false back tiltable towards said inclined wall to facilitate coke discharge from said coke chamber, side walls of said coke chamber having channels therein for the accommodation of said means, supplementary side walls for enclosing said means, hooks at the bottom of said coke chamber for engaging one side of said table when in its lowermost position, a shutter provided on said false back for cutting off said coke chamber from said retort when said false back is tilted, and a door for normally sealing said opening at the lower end of said coke chamber.

7. The combination with a vertical carbonization retort, of a coke chamber fixed beneath said retort to form a continuous chamber therewith and having an opening at its lower end, fixed front, rear and side walls of said coke chamber, a tiltable false back, an arcuate shutter movable with said false back, from one position to cut off Said coke chamber from said carbonization retort to another position to put said coke chamber into communication with said carbonization retort, a pocket carried by said front wall for the accommodation of said arcuate shutter in one position and of means for moving said shutter andsaid false back from one of said positions to the other, a door for sealingvsaid opening and a table reciprocable in said coke I chamber.

8. The combination with a vertical carbonization retort, of a coke chamber fixed beneath said retort to form a continuous chamber therewith and having an opening at 7 its lower end, fixed front, rear and side walls of said coke chamber, a tiltable false back, an arcuate shutter movable with said false back from one position to cut off said coke chamber from said carbonization retort to another position to put said coke chamber 715 into communication with said carbonization retort, a pocket carried by said front wall for the accommodation of said arcuate shutter in one position and of means for moving said shutter and said false back from one of said positions to the other, a door for sealing said opening, a table reciprocable in said coke chamber, and means for raising and lowering said table in said coke chamber.

9. The combination with a series of vertical carbonization retorts, of a series of coke chambers fixed beneath said retorts to form continuous chambers therewith and having openings in their lower ends, rear inclined walls of said coke chambers arranged in 130 pairs back to back in inverted V fashion to form a substructure for said retorts, a girder fioor supported by said substructure, false backs tiltable towards said inclined Walls to facilitate coke discharge from said chamber,

7 enclosed shutters for cutting off said retorts from said coke chambers, doors for sealing said openings at the lower ends of said coke chambers, and tables movable in said coke chambers.

' 40 In testimony whereof I have signed my name to this specification.

ERNEST WEST. 

